Set key on crankshaft in position by turning crankshaft. This is to prevent interference between valves and piston.

Loosen camshaft housing bolts in such order as indicated in figure and remove them.

NOTE

Never disassemble hydraulic valve lash adjuster. Don-t apply force (1) to body of adjuster, oil in high pressure chamber in adjuster will leak.

Fig. Loosen the camshaft bearing caps in the sequence shown-2.0L and 2.3L engine

Camshaft housings

Camshafts

Valve lash adjusters

Immerse removed adjuster in clean engine oil and keep it there until reinstalling it so as to prevent oil leakage. If it is left in air, place it with its bucket body facing down. Don-t place on its side or with bucket body facing up.

To install:

Before installing valve lash adjuster to cylinder head, fill oil passage of cylinder head with engine oil according to following procedure:

Pour engine oil through oil holes and check that oil comes out from oil holes in sliding part of valve lash adjuster.

Lubricate the lobes and journals of the camshaft with clean engine oil.

Install or connect the following:

Fig. Camshaft cap bolt tightening sequence-2.0L and 2.3L engines

Camshafts

Apply oil to sliding surface of each camshaft and camshaft journal then install them by aligning match marks on cylinder head and camshafts.

NOTE

Install camshaft in such direction that its end with groove for CMP sensor installation comes to exhaust side.

Camshaft housing pins

Check position of camshaft housings.

Embossed marks are provided on each camshaft housing, indicating position and direction for installation. Install housings as indicated by these marks.

Apply sealant to exhaust camshaft end housing sealing surface area.

After applying oil to housing bolts, tighten them temporarily first. Then tighten them by following numerical order in figure.

Tighten a little at a time and evenly among bolts and repeat tightening sequence two or three times before they are tightened to 8 ft. lbs. (11 Nm).

CMP sensor

Timing chains

Oil pan

Engine assembly

Negative battery cable

Start the engine and check for any water or oil leaks when finished.

Check ignition timing as necessary.

NOTE

Don-t turn camshafts or start engine (i.e., valves should not be operated) for about half an hour after reinstalling hydraulic valve lash adjusters and camshafts. As it takes time for valves to settle in place, operating engine within half an hour after their installation may cause interference to occur between valves themselves or valves and piston.

2.5L Engine

Before servicing the vehicle, refer to the Precautions Section.

Relieve the fuel system pressure.

Disconnect the negative battery cable.

Remove or disconnect the following:

NOTE

Make sure the engraved position numbers on the camshaft caps are not mixed up. Camshaft caps should follow the numeric order when installing, intake camshaft caps 1-3-5-7-9-11-13 and exhaust camshaft caps 2-4-6-8-10-12-14.

Installation should follow the removal procedure in the reverse order.

Lubricate the lobes and journals of the camshafts with clean engine oil.

Install or connect the following:

NOTE

The intake camshaft can be identified by the groove near the cam sprocket flange. The exhaust camshaft has no groove.

NOTE

Make sure the engraved position numbers on the camshaft caps are not mixed up. Camshaft caps should follow the numeric order when installing, intake camshaft caps 1-3-5-7-9-11-13 and exhaust camshaft caps 2-4-6-8-10-12-14.